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Finding the Fourth Proportional to 533.20, 798.76 and 435.82

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Solution

The fourth proportional to 533.20, 798.76 and 435.82 is: 652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.20 : 798.76 = 435.82 : x
  2. Step 2: Convert to fraction form
    533.20/798.76 = 435.82/x
  3. Step 3: Cross multiply
    533.20x = 798.76 × 435.82
  4. Step 4: Simplify right side
    533.20x = 348,115.58
  5. Step 5: Solve for x
    x = 348,115.58/533.20
  6. Step 6: Final answer
    x = 652.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.